Eyewitness video shows Mumbai slum fire devastation

MUMBAI, INDIA - DECEMBER 8: An affected woman of fire near her burnt house at the spot where over a thousand houses gutted in fire yesterday at Kandivali on December 8, 2015 in Mumbai, India. Two people, including a child, were killed and at least 11 others injured after a massive fire broke out at the Damu Nagar slums in Kandivli (East) on Monday afternoon. The blaze, which spread across 12 acres, gutted around 2,000 shanties, leaving nearly 10,000 people homeless. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 8: Prakash Mhaske (R) and Shantabai Mhaske (L) at their burnt house at Kandivali, where over a thousand houses gutted in fire yesterday on December 8, 2015 in Mumbai, India. Two people, including a child, were killed and at least 11 others injured after a massive fire broke out at the Damu Nagar slums in Kandivli (East) on Monday afternoon. The blaze, which spread across 12 acres, gutted around 2,000 shanties, leaving nearly 10,000 people homeless. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 8: Shivseran Wage (L) and his sister Kastura Jananur react at the spot where over a thousand houses gutted in fire yesterday at Kandivali on December 8, 2015 in Mumbai, India. Two people, including a child, were killed and at least 11 others injured after a massive fire broke out at the Damu Nagar slums in Kandivli (East) on Monday afternoon. The blaze, which spread across 12 acres, gutted around 2,000 shanties, leaving nearly 10,000 people homeless. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 8: People made temporary shelters at the spot where over a thousand houses gutted in fire yesterday at Kandivali on December 8, 2015 in Mumbai, India. Two people, including a child, were killed and at least 11 others injured after a massive fire broke out at the Damu Nagar slums in Kandivli (East) on Monday afternoon. The blaze, which spread across 12 acres, gutted around 2,000 shanties, leaving nearly 10,000 people homeless. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 8: People made temporary shelters at the spot where over a thousand houses gutted in fire yesterday at Kandivali on December 8, 2015 in Mumbai, India. Two people, including a child, were killed and at least 11 others injured after a massive fire broke out at the Damu Nagar slums in Kandivli (East) on Monday afternoon. The blaze, which spread across 12 acres, gutted around 2,000 shanties, leaving nearly 10,000 people homeless. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: Residents evacuate their belongings, after a major fire broke out in slums at Damu Nagar, on December 7, 2015 in Mumbai, India. A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pratham Gokhale/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: Resident evacuates the belongings, after a major fire broke out in slums at Damu Nagar, on December 7, 2015 in Mumbai, India. A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: A massive fire triggered by a gas cylinder explosion swept through the packed Damu Nagar slum in Kandivali on Monday, killing two people including a child, and destroying around 1,000 homes, on December 7, 2015 in Mumbai, India. The fire brigade control room, which said the fire started around 12.30 pm, sent 16 fire tenders and nine water tankers to control the fire. Fire officials had to struggle to contain the fire and could douse it only at 3.10 pm. (Photo by Pramod Thakur/Hindustan Times via Getty Images)

MUMBAI, INDIA - DECEMBER 7: Indian dwellers collect their belongings from the charred remains following a fire at a slum in the east of Kandivali, an area in the north of Mumbai on December 7, 2015. A massive fire sparked by a series of gas cylinder explosions swept through a packed slum in India's Mumbai, killing one person and destroying around 1,000 homes, officials said. (Photo by Imtiyaz Shaikh /Anadolu Agency/Getty Images)

MUMBAI, INDIA - DECEMBER 7: An Indian woman cries as she tries to collect her belongings from the charred remains following a fire at a slum in the east of Kandivali, an area in the north of Mumbai on December 7, 2015. A massive fire sparked by a series of gas cylinder explosions swept through a packed slum in India's Mumbai, killing one person and destroying around 1,000 homes, officials said. (Photo by Imtiyaz Shaikh /Anadolu Agency/Getty Images)

The fire started in a warehouse and swept through the slum in India's financial capital triggering a set of gas cylinder explosions, fire brigade and police officials said.

Bijur's video shows the burned out remnants of the slum with the sound of emergency services sirens in the background.

Broadcaster NDTV reported two people died in the fire in a northern suburb and a Reuters photographer said he saw one body in the wreckage. A city hospital employee said at least four casualties had been brought in by rescue workers, but fire fighters said others had been taken to private hospitals.

Fire fighters said cramped conditions in the slum, which houses a number of shacks used for storage, made it difficult for the fire brigade to reach the blaze. They feared residents might have become trapped in the wreckage.

More than 100 huts were destroyed, said the Reuters photographer at the scene, adding that residents were picking through the smoking remains of their homes as fire fighters doused the last of the blaze.